Casing assembly, range hood and assembly method of range hood

Abstract

The present application relates to the technical field of kitchen appliances, and provides a machine shell assembly, a range hood and an assembly method of the range hood. The machine shell assembly comprises a top rear plate and a side wall plate. The top rear plate comprises a top plate and a rear plate connected and forming an included angle. First folding parts are arranged on both sides of the top plate. Second folding parts are arranged on both sides of the rear plate. One of the first folding parts and the second folding parts comprises a body part and a lap joint part. The lap joint part is formed by bending one side of the body part along an end part of the body part. The other of the first folding parts and the second folding parts is in surface contact with and fixedly connected to the lap joint part. The side wall plate is fixedly connected to the top rear plate and forms a cavity suitable for mounting a fan assembly. The machine shell assembly of the present application comprises a top rear plate and a side wall plate, which facilitates the mounting of the fan assembly, significantly improves the assembly efficiency, strengthens the structure of the top rear plate, and surface contact can inhibit the vibration noise of the top rear plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a machine shell assembly, a range hood and an assembling method of the range hood. BACKGROUND

[0002] The range hood is a kind of kitchen appliance for purifying the kitchen environment. The range hood is installed above the stove and used to suck the cooking fume and water vapor generated during cooking to discharge the waste gas outside, reduce indoor pollution, purify the air, and have the safety guarantee function of preventing poisoning and explosion. The range hood has become an indispensable kitchen equipment in modern families.

[0003] Among them, the machine shell of the range hood plays a fixing and supporting role for the fan assembly (such as a volute). The rigidity of the machine shell and the stability after installation have a key influence on the vibration of the whole machine. In the related art, the structure of the machine shell of the range hood includes a top plate, a back plate and a side plate, or a top plate, a back plate and a surrounding plate, or a top plate and a surrounding plate, etc. The structure of the machine shell needs to be assembled first, and then the fan assembly is inserted into the inner cavity of the machine shell, which is not convenient to operate and has low assembly efficiency. SUMMARY

[0004] The present application aims to solve at least one of the technical problems in the related art. To this end, the present application provides a machine shell assembly, which is simple in structure, convenient to disassemble and assemble, easy to operate for installation and maintenance of the fan assembly, helps to improve the production efficiency, and enhances the structural rigidity of the top back plate to solve the problem of easy distortion and deformation of the machine shell assembly and enhance the overall rigidity of the machine shell assembly.

[0005] The present application also provides a range hood.

[0006] The present application also provides an assembling method of the range hood.

[0007] According to the machine shell assembly of the first aspect of the present application, the machine shell assembly comprises:

[0008] The top back plate comprises a top plate and a back plate connected and forming an included angle; first folding parts are formed on opposite sides of the top plate;

[0009] Second folding parts are formed on opposite sides of the back plate, one of the first folding parts and the second folding parts comprises a body part and a lap part, the lap part is formed by bending one side of the body part along the end of the body part, and the side surface of the other of the first folding part and the second folding part is in surface contact with and fixedly connected to the side surface of the lap part;

[0010] The side surrounding plate is fixedly connected with the top back plate and forms a cavity suitable for installing the fan assembly.

[0011] The shell assembly according to the embodiment of the present application comprises a top rear plate and a side wall plate, the side wall plate and the top rear plate are configured to form a cavity for mounting a fan assembly, the top rear plate can be used to fix the fan assembly, during the mounting process of the fan assembly, the fan assembly can be directly positioned and mounted with the top rear plate, and then the top rear plate and the side wall plate are assembled, the mounting mode of the fan assembly is simple and convenient, the assembly efficiency is significantly improved, meanwhile, the top rear plate and the side wall plate can be disassembled to repair the fan assembly, and the repair operation is also more simple and convenient. One of the first folding part and the second folding part is configured with a body part and a lap joint part, the side surface of the other of the first folding part and the second folding part is in surface contact with the side surface of the lap joint part, which helps to relieve the vibration noise at the connection, and the connection of the first folding part and the second folding part is more stable, which can solve the problem that the shell assembly is prone to distortion and deformation, enhance the overall rigidity of the shell assembly, and further improve the operation stability of the whole machine.

[0012] According to one embodiment of the present application, a predetermined gap is provided between the edge of the lap joint part and the surface of at least one of the top plate and the rear plate.

[0013] According to one embodiment of the present application, one of the first folding part and the second folding part comprises the lap joint part, and the other of the first folding part and the second folding part is welded and fixed with the lap joint part.

[0014] According to one embodiment of the present application, the width of the first folding part increases from front to back.

[0015] According to one embodiment of the present application, the first folding part comprises a first equal-width part, a second equal-width part and a gradual change part located between the first equal-width part and the second equal-width part, the width of the first equal-width part is the same as the width of one end of the gradual change part, and the width of the second equal-width part is the same as the width of the other end of the gradual change part.

[0016] According to one embodiment of the present application, the width of the first folding part gradually increases.

[0017] According to one embodiment of the present application, the width of the first folding part is greater than the width of the second folding part.

[0018] According to one embodiment of the present application, the side wall plate is configured with a reinforcing part bent downward from the top, an end of the reinforcing part is configured with a connecting part bent inward to the inside of the side wall plate, and the connecting part is fixedly connected with the top plate.

[0019] According to one embodiment of the present application, the connecting part is located above the top plate, and the connecting part is fixed with the top plate by screws.

[0020] According to one embodiment of the present application, the side plate comprises a first side plate and a second side plate arranged oppositely and a front plate connecting the first side plate and the second side plate, and the first side plate and the second side plate are connected to at least one of the top plate and the back plate, and the front plate and the back plate are arranged oppositely.

[0021] According to one embodiment of the present application, at least one of the top back plate and the side plate is configured with a pressing part.

[0022] According to one embodiment of the present application, the top plate and the back plate are both configured with a mounting position suitable for mounting a fan assembly.

[0023] According to the range hood of the second aspect of the present application, the range hood comprises a fan assembly and the above-mentioned casing assembly, and the fan assembly is mounted on the top back plate and located in the cavity.

[0024] According to the assembling method of the range hood of the third aspect of the present application, the method is applied to the above-mentioned range hood, and the method comprises:

[0025] Mounting the shell of the fan assembly on the mounting position of the top back plate;

[0026] Covering the side plate to the outside of the fan assembly and fixedly mounting the side plate with the top back plate.

[0027] The above-mentioned one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

[0028] The casing assembly of the present application comprises a top back plate and a side plate, and the side plate and the top back plate are configured to form a cavity for mounting a fan assembly, the top back plate can be used to fix the fan assembly, and during the mounting process of the fan assembly, the fan assembly can be directly positioned and mounted with the top back plate, and then the top back plate and the side plate are assembled, the mounting method of the fan assembly is simple and convenient, the assembling efficiency is significantly improved, and at the same time, the fan assembly can be repaired after the top back plate and the side plate are disassembled, and the repair operation is also more simple and convenient. One of the first folding part and the second folding part is configured with a body part and a lap joint part, and the other of the first folding part and the second folding part is in surface contact with the lap joint part, which helps to relieve the vibration noise at the connection, and the connection of the first folding part and the second folding part is more stable, which can solve the problem that the casing assembly is easy to twist and deform, enhance the overall rigidity of the casing assembly, and further improve the operation stability of the whole machine.

[0029] The range hood of the present application comprises a fan assembly and the above-mentioned casing assembly, and the fan assembly is fixedly connected with the top back plate to be mounted in the cavity, the mounting of the fan assembly is simple and convenient, and the overall stability of the range hood is better.

[0030] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0032] Figure 1 is a structural schematic diagram of an exploded state of a casing assembly provided by the embodiment of the present application;

[0033] Figure 2 is a structural schematic diagram of a top rear plate of the casing assembly provided by the embodiment of the present application;

[0034] Figure 3 is a partial enlarged structural schematic diagram of the A part in Figure 2

[0035] Figure 4 is a structural schematic diagram of a side wall plate of the casing assembly provided by the embodiment of the present application;

[0036] Figure 5 is a structural schematic diagram of an assembled state of the casing assembly provided by the embodiment of the present application; in the diagram, a state of installing a fan assembly in the casing assembly is shown;

[0037] Figure 6 is a structural schematic diagram of an exploded state of the casing assembly provided by the embodiment of the present application; and Figure 1 The difference between Figure 6 The top rear plate and the side wall plate in

[0038] Figure 7 is a structural schematic diagram of a connection state of the top rear plate of the casing assembly and the fan assembly provided by the embodiment of the present application;

[0039] Figure 8 is a structural schematic diagram of an exploded state of the casing assembly and the fan assembly in the extractor hood provided by the embodiment of the present application;

[0040] Figure 9 is a structural schematic diagram of an exploded state of the casing assembly and the fan assembly in the extractor hood provided by the embodiment of the present application; and Figure 8 The difference between Figure 9 The top rear plate and the side wall plate in

[0041] Reference signs: ​

[0042] 100: top rear plate; 110: top plate; 111: first folding part; 1111: body part; 1112: lapping part; 1113: first uniform width part; 1114: gradual change part; 1115: second uniform width part; 112: air outlet; 113: first mounting position; 114: third folding part; 120: rear plate; 121: second folding part; 122: second mounting position; 123: first embossing part;

[0043] 200: side wall plate; 210: reinforcing part; 220: connecting part; 230: first side plate; 231: first reinforcing part; 232: first connecting part; 233: second embossing part; 234: fourth folding part; 240: second side plate; 241: third embossing part; 242: fifth folding part; 250: front plate; 251: second reinforcing part; 252: second connecting part;

[0044] 300: volute; 310: mounting frame; 320: air outlet part. DETAILED DESCRIPTION

[0045] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0046] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the use state of the range hood, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified and limited, the terms "a plurality of", "a plurality of", "a plurality of" mean two or more.

[0047] In the description of the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature can be "under", "below" and "underneath" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0049] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0050] Embodiments of the first aspect of the present application are described with reference to Figures 1 to 7 As shown in the drawings, a cabinet assembly is provided, comprising: a top rear plate 100 and a side wall 200, the top rear plate 100 comprising a top plate 110 and a rear plate 120 connected and forming an included angle; and the side wall 200 is fixedly connected with the top rear plate 100 and is configured to form a cavity suitable for mounting a fan assembly.

[0051] The cabinet assembly comprises two parts of the top rear plate 100 and the side wall 200, and the number of parts of the cabinet assembly is small, so that the structure and assembly process of the cabinet assembly can be simplified. Moreover, the fan assembly needs to be positioned and mounted through the top plate 110 and the rear plate 120, and the top rear plate 100 comprises the top plate 110 and the rear plate 120, so that the fan assembly can be directly positioned and mounted with the top rear plate 100, and then the top rear plate 100 and the side wall 200 are assembled. Compared with the mounting mode of inserting the fan assembly into the inner cavity of the cabinet in the related art, the mounting mode of the fan assembly in the present embodiment is simple and convenient, and the assembly efficiency is significantly improved. At the same time, the top rear plate 100 and the side wall 200 can be disassembled to repair the fan assembly, and the repair operation is also more simple and convenient.

[0052] The included angle between the top plate 110 and the rear plate 120 can be set as required, and the included angle between the top plate 110 and the rear plate 120 is adapted to the installation position of the fan assembly to ensure that the fan assembly can be accurately assembled. Generally, the top plate 110 and the rear plate 120 can form an included angle of 90°, and the fan assembly blows air in the vertical direction. The side wall 200 is adapted to surround the left and right sides and the front side of the top and rear plate 100, and the side wall 200 can be an arc-shaped curved panel or a panel with multiple bends. The specific structure of the side wall 200 is not limited and can be selected as required.

[0053] The shell assembly of the embodiment has a simple structure, facilitates assembly of the fan assembly, and helps to improve the assembly efficiency of the entire machine.

[0054] It can be understood that the opposite sides of the top plate 110 are provided with first folding portions 111, and the opposite sides of the rear plate 120 are provided with second folding portions 121. The first folding portions 111 and the second folding portions 121 cooperate to strengthen the rigidity of the top and rear plate 100.

[0055] The left and right sides of the top plate 110 are respectively folded downward to form the first folding portions 111, and the left and right sides of the rear plate 120 are respectively folded forward to form the second folding portions 121. The top and rear plate 100 includes four folding portions, which can be strengthened from four positions.

[0056] The angle of the downward folding of the first folding portion 111 and the angle of the forward folding of the second folding portion 121 can be determined according to the structure of the side wall 200, so that the first folding portion 111 and the second folding portion 121 are attached to the inner wall of the side wall 200, which helps to strengthen the structural strength of the shell assembly.

[0057] It can be understood that, as shown in Figure 2 and Figure 3 One of the first folding portion 111 and the second folding portion 121 includes a body portion 1111 and a lapping portion 1112. The lapping portion 1112 is bent from one side of the body portion 1111 at the end of the body portion 1111, that is, the lapping portion 1112 is bent from one side of the body portion 1111 at the end of the body portion 1111 to be staggered with the body portion 1111. The side surface of the other of the first folding portion 111 and the second folding portion 121 is in surface contact with and fixedly connected to the side surface of the lapping portion 1112. The surface contact can suppress vibration noise at the connection.

[0058] The body portion 1111 and the lapping portion 1112 combine to form the first folding portion 111 or the second folding portion 121, which can strengthen the rigidity of the top and rear plate 100. In combination with Figures 1 to 9 , the first folding portion 111 is taken as an example for description.

[0059] Reference Figures 1 to 3 As shown in FIG. 1, the first folded portion 111 includes a body portion 1111 extending from front to rear to the position of the second folded portion 121, the front end of the body portion 1111 faces the front, the rear end of the body portion 1111 faces the second folded portion 121, and a lap portion 1112 is bent inward from the rear end of the body portion 1111 and formed in a staggered position with the body portion 1111. In this embodiment, the outer side surface of the lap portion 1112 is in surface contact with the inner side surface of the second folded portion 121, the contact area of the lap portion 1112 and the second folded portion 121 is larger, which helps to alleviate the vibration noise at the connection, and the connection of the first folded portion 111 and the second folded portion 121 is more stable, which can solve the problem that the shell assembly is prone to distortion and deformation, enhance the overall rigidity of the shell assembly, and thus improve the overall operation stability.

[0060] It should be noted that the lap portion (not shown in the figure) can also be bent outward from the rear end of the body portion, and the first folded portion with the second folded portion in this structure can also play a role in strengthening the top rear panel. Of course, the second folded portion can also be provided as a structure including a body portion and a lap portion (not shown in the figure), which can be referred to the above-mentioned manner, and will not be repeated here.

[0061] Among them, the body portion 1111 and the second folded portion 121 are equal in thickness and coplanar, so that the body portion 1111 and the second folded portion 121 can be attached to the inner surface of the side wall 200.

[0062] It can be understood that one of the first folded portion 111 and the second folded portion 121 includes the lap portion 1112, and the other of the first folded portion 111 and the second folded portion 121 is welded and fixed with the lap portion 1112. Taking the above-mentioned fixed connection of the second folded portion 121 and the lap portion 1112 as an example, that is, the second folded portion 121 and the lap portion 1112 are welded and fixed, which helps to strengthen the rigidity of the top rear panel 100 and effectively strengthen the overall rigidity of the shell assembly. And, compared with the riveting or screw connection mode, the welding fixed mode helps to enhance the integrity of the top plate 110 and the rear plate 120, so that the top plate 110 and the rear plate 120 are not prone to relative vibration, and the influence of the overall vibration on the structural stability of the top rear panel 100 is reduced.

[0063] It can be understood that, as shown in FIG. 1, Figure 2 and Figure 3 As shown in FIG. 1, a predetermined gap is provided between the edge of the lap portion 1112 and the surface of at least one of the top plate 110 and the rear plate 120, so as to avoid vibration between the lap portion 1112 and the surface of at least one of the top plate 110 and the rear plate 120 due to contact, which helps to improve the structural stability of the top rear panel 100.

[0064] The reserved gap can be set as 2mm, which can effectively prevent contact vibration.

[0065] It can be understood that, referring to Figures 1 to 3 As shown in the drawings, the width of the first folding part 111 increases from front to back, and the width of the rear end of the first folding part 111 increases, so that the first folding part 111 has a better reinforcing effect on the rear end of the top plate 110, thereby enhancing the rigidity of the connection between the top plate 110 and the rear plate 120, and further improving the structural stability of the top-rear plate 100.

[0066] In addition, the width of the front end of the first folding part 111 needs to meet the reinforcing effect on the front end of the top plate 110. The first folding part 111 forms a structure of narrow front and wide back, which can strengthen the rear end of the top plate 110 in a targeted manner, improve the connection strength, and also save part of the material.

[0067] The length of the first folding part 111 is the total length from front to back, and the width is the total length in the direction from top to bottom.

[0068] It can be understood that the first folding part 111 includes a first equal-width part 1113, a second equal-width part 1115, and a gradual change part 1114 between the first equal-width part 1113 and the second equal-width part 1115. The width of the first equal-width part 1113 is the same as the width of one end of the gradual change part 1114, and the width of the second equal-width part 1115 is the same as the width of the other end of the gradual change part 1114. The width of the gradual change part 1114 gradually changes, and the width of one end of the gradual change part 1114 connected to the first equal-width part 1113 is smaller, and the width of one end of the gradual change part 1114 connected to the second equal-width part 1115 is larger.

[0069] The rear end of the top plate 110 is reinforced by the second equal-width part 1115, and the front end of the top plate 110 is kept at a smaller width by the first equal-width part 1113, which can save the material of the front part of the first folding part 111. The width change of the first equal-width part 1113 and the second equal-width part 1115 is transitioned by the gradual change part 1114, which can ensure the structural strength of the first folding part 111 and relieve the stress concentration problem of the first folding part 111.

[0070] Referring to Figure 2 As shown in the drawings, the first equal-width part 1113 and the second equal-width part 1115 are both rectangular structures, and the gradual change part 1114 is a trapezoidal structure.

[0071] When the first folding part 111 comprises the body part 1111 and the overlapping part 1112, the part of the body part 1111 close to the overlapping part 1112 is the second equal-width part 1115, the width of the overlapping part 1112 is the same as the width of the second equal-width part 1115, or the width of the overlapping part 1112 is slightly smaller than the width of the second equal-width part 1115. When a preset gap is left between the overlapping part 1112 and the top plate 110, the width of the overlapping part 1112 is smaller than the width of the second equal-width part 1115 by the size of the preset gap.

[0072] It can be understood that the width of the first folding part gradually increases (not shown in the figure), and the first folding part is a gradient structure, so that the structural rigidity of the first folding part is uniformly enhanced, and the stress effect of the first folding part is better.

[0073] The first folding part can be a trapezoidal structure or a triangular structure, or the lower contour of the first folding part is an arc shape.

[0074] Of course, the width of the first folding part 111 increases from front to back, and can also be other structural forms, which can be selected as needed.

[0075] It can be understood that the width of the first folding part 111 is greater than the width of the second folding part 121. In the related art, the edges of the walls of the shell are all set to an equal-width structure, and the structural rigidity of each wall surface is similar, while the first folding part 111 of the present embodiment is specifically used to further strengthen the top plate 110, thereby improving the rigidity of the top plate 110, and further enhancing the rigidity of the entire shell assembly.

[0076] It can be understood that the structure of the top rear plate 100 described above is that the front end of the top plate 110 is folded downward to form a third folding part 114, which strengthens the front end of the top rear plate 100. When the top rear plate 100 is fixed with the side wall 200, the third folding part 114 can be in surface contact with the side wall 200 for fixation.

[0077] It can be understood that in the above embodiment, the top plate 110 and the rear plate 120 of the top rear plate 100 are bent to form, and the first folding part 111, the second folding part 121 and the third folding part 114 are all bent to form, which is simple in processing method.

[0078] It can be understood that, as shown in Figure 1 , Figure 4 and Figure 5 , the side wall 200 is provided with a reinforcing part 210 bent downward from the top, and the provision of the reinforcing part 210 makes the upper end of the side wall 200 a double-layer structure, which not only strengthens the rigidity, but also avoids the top end edge of the side wall 200 being too sharp.

[0079] The end of the reinforcing part 210 is configured with a connecting part 220 bent to the inner side of the side wall plate 200, the connecting part 220 is fixedly connected with the top plate 110, so that the side wall plate 200 and the top rear plate 100 are fixed through the top plate 110, the connecting part of the side wall plate 200 and the top rear plate 100 is hidden at the top plate 110, that is, the connecting part of the side wall plate 200 and the top rear plate 100 is hidden at the inner side of the side wall plate 200, and the outer side of the side wall plate 200 does not need to display the connecting part, so that the side wall plate 200 can play a role of a decorative plate, a separate decorative plate is not needed, the parts of the machine shell assembly can be reduced, the machining and assembly processes are reduced, the production efficiency is improved, and the production cost is further reduced.

[0080] The connecting part 220 is provided with a screw fixing hole, so that screw assembly can be facilitated in the assembly process. In the later maintenance process, only the screw between the connecting part 220 and the top plate 110 needs to be disassembled, so that the impeller, motor and other parts of the fan assembly can be maintained and replaced.

[0081] It can be understood that the connecting part 220 is located above the top plate 110, facilitating positioning of the connecting part 220 and the top plate 110. The connecting part 220 and the top plate 110 are fixed by screws, instead of welding or riveting in the related art. The welding and riveting need to be customized with professional tooling equipment, while the screw installation does not need to be equipped with special assembly tools, which can save tooling equipment investment, and the screw connection also saves assembly time compared with welding, which helps to improve production efficiency. The connecting part 220 and the top plate 110 are fixed by screws, so that the side wall plate 200 can be disassembled by screwing, which facilitates later maintenance.

[0082] The connecting part 220 and the top plate 110 are fixedly connected at the top of the top plate 110, so that the outer side of the side wall plate 200 does not need to be provided with a connecting hole, the appearance structure of the side wall plate 200 is neat, can play a role of a decorative plate, does not need to be additionally provided with a decorative plate on the outer side of the side wall plate 200, reduces parts and saves cost, and only needs to disassemble the side wall plate 200 and the top rear plate 100 to maintain the parts in the cavity.

[0083] It can be understood that the side wall plate 200 includes a first side plate 230 and a second side plate 240 arranged opposite to each other and a front plate 250 connecting the first side plate 230 and the second side plate 240, the first side plate 230 and the second side plate 240 are connected to at least one of the top plate 110 and the rear plate 120, and the front plate 250 is arranged opposite to the rear plate 120.

[0084] The first side plate 230 and the second side plate 240 are respectively located on both sides of the front plate 250, but the structure forms of the first side plate 230, the second side plate 240 and the front plate 250 are not limited, the first side plate 230, the second side plate 240 and the front plate 250 can be planar plates, curved plates or bent plates, and the specific structure form can be selected as needed.

[0085] Reference is made to Figures 1 to 9 It is shown that the side plate 200 and the top rear plate 100 form a cuboid structure.

[0086] Reference is made to Figures 4 to 6 It is shown that the first side plate 230 is bent downward to form a first reinforcing part 231, the first reinforcing part 231 is bent inward to the inner side of the side plate 200 to form a first connecting part 232, the front plate 250 is bent downward to form a second reinforcing part 251, the second reinforcing part 251 is bent inward to the inner side of the side plate 200 to form a second connecting part 252, the second side plate 240 is bent downward to form a third reinforcing part, the third reinforcing part is bent inward to the inner side of the side plate 200 to form a third connecting part, so that the three wall plates of the side plate 200 are connected with the top plate 110 in three directions, fully fixed, and the structural symmetry and stability are ensured.

[0087] The rear end of the first side plate 230 of the side plate 200 is bent inward to form a fourth folding part 234, the fourth folding part 234 is located on the outer side of the rear plate 120, the rear end of the second side plate 240 is bent inward to form a fifth folding part 242, the fifth folding part 242 is also located on the outer side of the rear plate 120, and the fourth folding part 234 and the fifth folding part 242 strengthen the side plate 200 and protect the rear plate 120.

[0088] It can be understood that reference is made to Figure 6 It is shown that the top rear plate 100 and at least one of the side plates 200 are configured with a pressing part, which can be used to reduce the vibration amplitude of mechanical waves on the rack caused by motor vibration, and further suppress the vibration of the machine shell assembly.

[0089] The pressing part can be a vertical or horizontal pressing structure to strengthen the rigidity of at least one of the top rear plate 100 and the side plate 200 and reduce vibration. In addition, the pressing part on the side plate 200 can also be provided in multiple shapes to play a decorative role on the side plate 200.

[0090] Reference is made to Figure 6 It is shown that the rear plate 120 is provided with a first pressing part 123, the first pressing part 123 includes two kinds of horizontal extension and vertical extension, the first side plate 230 is provided with a second pressing part 233, the second side plate 240 is provided with a third pressing part 241, and the second pressing part 233 and the third pressing part 241 both extend along the longitudinal direction. Of course, the front plate 250 of the side plate 200 can be provided with a fourth pressing part (not shown in the figure), which can be selected according to actual needs.

[0091] It can be understood that reference is made to Figure 2 , Figure 6 and Figure 7As shown, the top plate 110 and the back plate 120 are both configured with mounting positions suitable for mounting the fan assembly, so that the fan assembly is fixedly mounted on the top plate 110 and the back plate 120, to ensure the fixing stability of the fan assembly.

[0092] The outer periphery of the air outlet 112 of the top plate 110 is provided with a first mounting position 113, the air outlet part 320 of the volute 300 of the fan assembly is mounted on the first mounting position 113, and the back plate 120 is provided with a second mounting position 122, and the mounting bracket 310 on the volute 300 is fixed on the second mounting position 122.

[0093] It should be noted that the cavity formed by the casing assembly in the above embodiment has an open lower end structure, and the lower end of the casing assembly is used for mounting the air inlet part, and the lower end of the side wall plate 200 and the back plate 120 is provided with a connecting hole for connecting with the part at the lower end of the casing assembly. After the range hood is assembled, the connecting hole at the lower end of the side wall plate 200 and the back plate 120 is hidden inside, and the connecting hole will not be exposed outside the casing assembly, so that the appearance structure of the range hood is neat.

[0094] The embodiment of the second aspect of the present application is described with reference to Figures 1 to 9 As shown, a range hood is provided, which comprises a fan assembly and a casing assembly in one or more embodiments described above, and the fan assembly is mounted on the top back plate 100 and located in the cavity. The casing assembly has all the beneficial effects described above, and the range hood has the beneficial effects described above. For details, please refer to the above description, which will not be repeated here.

[0095] The fan assembly comprises a volute 300, a motor, a turbine and the like, and the fan assembly is fixed to the casing assembly through the volute 300. The volute 300 is provided with a mounting bracket 310 for fixing with the back plate 120, and the air outlet part 320 of the volute 300 is fixed to the top plate 110. The fixing mode of the volute 300 is simple, and the structure is stable.

[0096] The range hood of the embodiment has a simple casing assembly structure and a fan assembly which is easy to disassemble and assemble, which helps to reduce production time and save production cost.

[0097] The embodiment of the third aspect of the present application provides an assembly method of a range hood, which is applied to the range hood in one or more embodiments described above, and comprises: mounting the shell of the fan assembly on the mounting position of the top back plate 100; and covering the side wall plate 200 to the outside of the fan assembly and fixedly mounting the side wall plate 200 with the top back plate 100.

[0098] Based on the structure of the casing assembly comprising the top back plate 100 and the side wall plate 200, in the assembly process of the casing assembly and the fan assembly, the top back plate 100 is first fixed with the fan assembly, and then the top back plate 100 is fixed with the side wall plate 200, which facilitates the operation of the staff and improves the assembly efficiency.

[0099] The top rear plate 100 is provided with a matching mounting structure on the volute 300 of the fan assembly.

[0100] The above embodiments are only used for illustrating the present application, but not limiting the present application. Although the present application is explained in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the scope of claims of the present application.

Claims

1. A housing assembly, characterized in that, include: The top and back panels include a top panel and a back panel connected to each other and forming an angle; the top panel has a first folded portion on each of its opposite sides; the back panel has a second folded portion on each of its opposite sides, one of the first folded portion and the second folded portion includes a body portion and an overlapping portion, the overlapping portion is formed by bending along the end of the body portion toward one side of the body portion, and the side of the other of the first folded portion and the second folded portion is in contact with and fixedly connected to the side of the overlapping portion; The side panels are fixedly connected to the top rear panel and form a cavity suitable for installing the fan assembly.

2. The housing assembly according to claim 1, characterized in that, A predetermined gap is provided between the edge of the overlapping portion and the surface of at least one of the top plate and the rear plate.

3. The housing assembly according to claim 1, characterized in that, One of the first folding portion and the second folding portion includes the overlapping portion, and the other of the first folding portion and the second folding portion is welded and fixed to the overlapping portion.

4. The housing assembly according to claim 1, characterized in that, The width of the first fold increases from front to back.

5. The housing assembly according to claim 4, characterized in that, The first folding portion includes a first equal-width portion, a second equal-width portion, and a gradient portion located between the first equal-width portion and the second equal-width portion. The width of the first equal-width portion is the same as the width of one end of the gradient portion, and the width of the second equal-width portion is the same as the width of the other end of the gradient portion. Alternatively, the width of the first folded portion gradually increases.

6. The housing assembly according to claim 1, characterized in that, The width of the first folded portion is greater than the width of the second folded portion.

7. The housing assembly according to claim 1, characterized in that, The side panel has a reinforcing section that bends downward from the top, and the end of the reinforcing section has a connecting section that bends inward toward the side panel, and the connecting section is fixedly connected to the top panel.

8. The housing assembly according to claim 7, characterized in that, The connecting part is located above the top plate, and the connecting part is fixed to the top plate by screws.

9. The housing assembly according to any one of claims 1 to 8, characterized in that, The side panel includes a first side panel and a second side panel disposed opposite to each other, and a front panel connecting the first side panel and the second side panel. The first side panel and the second side panel are both connected to at least one of the top panel and the rear panel. The front panel and the rear panel are disposed opposite to each other.

10. The housing assembly according to any one of claims 1 to 8, characterized in that, At least one of the top rear panel and the side panel has a pressed section.

11. The housing assembly according to any one of claims 1 to 8, characterized in that, Both the top plate and the rear plate are configured with mounting positions suitable for installing fan components.

12. A range hood, characterized in that, It includes a fan assembly and a housing assembly as described in any one of claims 1 to 11, wherein the fan assembly is mounted on the top rear plate and located within the cavity.

13. A method for assembling a range hood, characterized in that, The range hood of claim 12 is used to include: The housing of the fan assembly is installed in the mounting position of the top rear plate; The side panel is covered over the fan assembly and fixedly installed with the top rear panel.

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